API EndPoint missing Grade Field

Since late March, we are having issues querying the API successfully. If we manually run a site, it works. If we use the API, the Grade field in the EndPoint is missing as per the documentation below. Anyone else have the issue? We are getting "Internal Error" in the "statusMessage".

Endpoint

ipAddress- endpoint IP address, in IPv4 or IPv6 format.

serverName- server name retrieved via reverse DNS

statusMessage- assessment status message; this field will contain "Ready" if the endpoint assessment was successful.

statusDetails- code of the operation currently in progress

statusDetailsMessage- description of the operation currently in progress